Brushing device

ABSTRACT

A brushing device having a manually driven brush rotatable about its longitudinal axis. The brush is oscillated by means of a pull cord wrapped around a pulley which is drivingly connected to the brush, at least one span of the pull cord extending directly from the pulley to be grasped by a hand of the operator. Preferably the cord has two such spans, which extend from opposite sides of the pulley, and which are engaged and pulled by the respective hands of the operator. Some of the disclosed embodiments of the device are particularly adapted for use as bathing aids. In certain disclosed embodiments, the brush remains in a fixed axial position. In other embodiments, the brush, which is mounted vertically, is free for vertical travel throughout a limited range under the influence of the pulls on the said spans of the pull cord. In yet another embodiment, wherein the device is disposed vertically, the brush oscillating cords may selectively be pulled either horizontally or vertically.

United States Patent Enchelmaier et al.

[151 3,678,523 [451 July 25,1972

1 1 BRUSHING DEVICE 22 Filed: May27, 1970 21 Appl.No.: 41,029

[52] U.S. Cl. ..15/21 D, 128/56 [51] Int. Cl t ..A46b 13/08, A6lh 7/00 [58] FieldofSearch ..15/21 R,21 D,21 E, 36, 97; 4/158, 184; 128/56; 254/191 [56] References Cited UNITED STATES PATENTS 1,192,679 7/1916 Pedersen ..15/36 2,021,768 11/1935 Epp ..15/182 2,876,765 3/1959 Day 15/21 D X 3,078,484 2/1963 Briggs t ..15/21 R 992,905 5/1911 Robinson ..15/21 D X 2,782,439 2/1957 Ballard ..15/182 Borner ..254/191 UX .lones................. ..15/182 Primary Examiner-Edward L. Roberts Attorney-Alfred W. Vibber [5 7] ABSTRACT A brushing device having a manually driven brush rotatable about its longitudinal axis. The brush is oscillated by means of a pull cord wrapped around a pulley which is drivingly connected to the brush, at least one span of the pull cord extending directly from the pulley to be grasped by a hand of the operator. Preferably the cord has two such spans, which ex tend from opposite sides of the pulley, and which are engaged and pulled by the respective hands of the operator. Some of the disclosed embodiments of the device are particularly adapted for use as bathing ajds. In certain disclosed embodiments, the brush remains in a fixed axial position. In other embodiments, the brush, which is mounted vertically, is free for vertical travel throughout a limited range under the influence of the pulls on the said spans of the pull cord. In yet another embodiment, wherein the device is disposed vertically, the brush oscillating cords may selectively be pulled either horizontally or vertically.

13 Claims, 12 Drawing Figures PATENTEU JULZS I972 SHEET 1 BF 3 S m T N E V m WILLIAM F. ENCHELMAIER HARVARD W.K. ENCHELMMER WILLIAM J. ENCHELHAIER PATENIEI] JULZSIBYZ 3.678523 SHEET 2 0F 3 INVENTORS ,WILLIAM F. ENCHELMAIER HARVARD WK. ENCHELMAIER WILLIAM J. ENCHELMAIER PATENTED M25 12 3.678.523

sum 3 nr 3 INVENTORS WILLIAM F. ENCHELMAIER HARVARD WLK. ENCHELMAJER WILLIAM J. ENCHELMAIER BRUSHING DEVICE This invention relates to a brushing device, and more particularly relates to a manually powered brushing device having an elongated brush which is rotatable about its longitudinal axis. The brushing device of the invention may be used to advantage in a number of applications; in one embodiment disclosed herein, the device is shown as being used as an aid to bathing.

The invention has among its objects the provision of an improved, simplified manually powered brushing device.

Another object of the invention is the provision of a device of the character above indicated wherein the brush is readily removable so as to be easily cleaned and dried.

A further object of the invention is the provision of a brushing device wherein the device may be mounted upon a support such as a wall in a novel, simple manner.

Yet another object of the invention is the provision, in one preferred embodiment thereof, of a brushing device wherein the brush is free for axial travel throughout a limited range under the influence of the pulls on the span or spans of the brush-driving cord extending from a brushdriving pulley affixed to the brush.

A still further object of the invention is the provision of a novel means for preventing the escape of the turns of brushdriving cord from the pulley affixed to the brush.

Our invention is clearly defined in the appended claims. Where parts are, for clarity and convenience, referred to on the basis of their oriented position shown in the accompanying drawings, no limitation as to the positioning of the entire structure is to be implied, since it will be understood that he entire structure may be inverted or that it may be used in any inclined position. Also, in both the description and the claims, parts at times may be identified by specific names for clarity and convenience, but such nomenclature is to be understood as having the broadest meaning consistent with the context and with the concept of our invention as distinguished from the pertinent prior art. The best form in which we have contemplated applying our invention is illustrated in the accompanying drawings forming part of this specification, in which:

FIG. I is a view in plan of a first embodiment of brushing device in accordance with the present invention;

FIG. 2 is a view in end elevation of the device shown in FIG. I, the view being taken from the line 2--2 ofFIG. 1;

FIG. 3 is a view in transverse vertical section through the device of FIG. 1, the section being taken along Iine.3-3 of FIG. 1;

FIG. 4 is a view in end elevation of the device of FIG. 1, the view being taken from the line 4-4 of FIG. 1;

FIG. 5 is a view in perspective of a second embodiment of the brushing device of the invention;

FIG. 6 is a view in horizontal section through the device of FIG. 5, the section being taken along the line 6--6 of FIG. 5;

FIG. 7 is a fragmentary view in vertical diametral section through the bottom of the brush shown in FIG. 5, certain of the parts being shown in elevation, the section being taken along the line 717 ofFIG. 5;

FIG. 8 is a fragmentary view in bottom plan of the brush and the stop means for determining the lower terminus of reciprocation of the brush in the embodiment of FIGS. 5-8, inclusive;

FIG. 9 is a fragmentary view, partially in side elevation and partially in vertical section, of a third illustrative brushing device in accordance with the invention;

FIG. 10 is a view in horizontal section through the device of FIG. 9, the section being taken along the line 10-10 of FIG.

FIG. 9, the section being taken along the line 11-11 of FIG. 9; and

FIG. 12 is a fragmentary view in side elevation of a fourth illustrative brushing device in accordance with the invention, said device selectively permitting the brush oscillating cords to be pulled either horizontally or vertically.

FIG. 11 is a view in horizontal section through the device of As will be apparent from the above, four preferred illustrative embodiments of the brushing device of the invention are shown herein. The first of such four embodiments is shown in FIGS. l4, inclusive. The second embodiment is shown in FIGS. 5-8, inclusive. Parts in the first two embodiments which are similar are designated by the same reference characters. The third illustrative embodiment is shown in FIGS. 9-11, inclusive; the fourth embodiment, which is a modification of the device of FIGS. 9-11, inclusive, is shown in FIG. 12.

Turning now to the embodiment of FIGS. l-4, inclusive, the brushing device there shown is designated generally by the reference character 10. Such device is shown attached to the wall 11 of a room with the axis of the elongated brush in a horizontal position; the device in such position is useful in a number of ways, including its use as a shoe brush, or, when it is mounted on a bathroom wall at a tub or shower, as a bathing aid. Device 10 includes a left hand bracket 12 and a right hand bracket 14, the base 15 of each of such brackets being attached to the wall 11 by adhesive strips 13, as shown.

The brush of the device 10 is designated generally by the reference character 16. Such brush has a core 17 (FIG. 3) in the form of a tube, the bristles of the brush, generally designated 19, being retained upon the core 17 by having their roots gripped between adjacent turns of cord 18 on the core, the cord being fastened to the core, and the bristles to the core and cord, by a curable resin. When the bristles are made of material such as nylon and the resin is an epoxy resin or the like, the brush is virtually immune to water and thus may be used without deterioration as a bathing aid, or may be readily cleaned by being dipped in water. The core 17 may be made of a hard resin of rubber, as shown, or of corrosion resistant metal.

The specific brush shown has spaced helical bristle rows 20. It has been found that such brush is ideal for bathing, since the spaced helical bristle rows produce a massaging effect upon the body and cause the soapy water to be impelled across the skin of the user as the brush rotates.

The brush 10 is rotatably mounted upon an elongated hollow axle rod 24 which is supported in the brackets 12 and 14 in a manner more specifically to be described. In order to center the brush with respect to the axle rod 24, the washer 21 having a central bore therein accurately receiving the axle rod 24 is secured to the right hand end of the core 17 of the brush as by an epoxy resin. To the left hand end of the brush as it is shown in FIG. 1, there is similarly secured a washer 22 having a central hole therein which accurately receives the rod 24; a pulley 32, by means of which the brush is driven, is secured to the washer 22 coaxially thereof, as shown.

The bracket 14 has an outwardly projecting leg 25, such leg having a central bore therein which snugly receives the end of the axle rod 24. The right hand end of the rod 24 is threaded and receives a thumb nut 26 axially outwardly of the member or wall 25 of the bracket 14. The left hand bracket 12 has two parallel vertical axially spaced wall members thereon, the axially inner member being designated 27 and the axially outer member being designated 29. The walls 27 and 29 present a vertically extending space 30 therebetween. The axially inner wall 27 has a V-notch 31 in its outer or free edge, as more clearly shown in FIGS. 2 and 3. Such notch has a depth such that it receives the washer 22 affixed to the core of the brush without contact with the walls of the notch.

The above-mentioned pulley 32 is received in the space 30 between the walls 27 and 29. As above-mentioned, the pulley 32 is afiixed to washer 22 which in turn is afiixed to the core 17 of the brush 16. The axiallyouter wall 29 of the bracket 12 is provided with a passage therethrough which snugly receives the left hand and of the axle rod 24. The left hand outer end of the axle rod 24 is threaded, and threadedly receives a second thumb nut 37 which is disposed axially outwardly of the outer wall 29 of the bracket 12. It will thus be seen that the thumb nuts 26, 36 retain the axle rod 24 from appreciable axial movement, and that the brush is journalled upon rod 24 by the washers, 21 at the right and 22 at the left, afiixed to the opposite ends of the brush core.

The brush 16 is oscillated by a pull cord 35 which is wound several times about the pulley 32 and lies in the peripheral groove of the pulley. The opposite ends of the pull cords which extend from the pulley 32 are designated, respectively, 35 and 35".

The pull cord 35 is prevented from escape from the pulley 32 in the following manner: Connecting the top and bottom edges of the wall or partition members 27 and 29 of bracket 12 are horizontal cross walls 15. In the embodiment shown, all of the walls, legs and bases of the brackets are made of plastic material, and are secured to each other by adhesive such as an epoxy resin. The upper and lower cross walls 37 are of such length that is in the dimension thereof projecting from the wall 11 that their outer edges 37 extend outwardly from the base 15 of the bracket to at least the vertical diametral plane of the brush. The inner confronting surfaces of the upper and lower wall members 37 lie a vertical distance apart which only slightly exceeds the outer diameter of the pulley 32. As a result, the inner surfaces of the plate members 37 and the peripheral outer edge portions of the pulley 32 present a substantially peripherally closed opening therebetween, such opening preventing the escape of the cord 35 from the pulley 32 in a direction axially of the pulley. The axially outer wall member 29 of the bracket 12 has a portion 34 with a semi-circular free outer edge which overlies, and has substantially the same diameter as, the pulley 32. This both masks the pulley 32 as it is seen in an end view of the device, and also prevents the entanglement of fingers, etc. of the operator with the pulley 32 and the cord 35 wound thereon. When the brush device of the first embodiment disposed as shown in FIG. 1 lies idle, the spans 35' and 35" of the pull cord depend from the device, as shown in FIG. 2 and FIG. 3. When the brush is to be operated, the operator grasps the two spans 35 and 35" of the pull cord in his two respective hands, and pulls the spans alternately in opposite directions, thereby oscillating the brush.

The brush 16 may be readily removed from the device 10, as for the purpose of cleaning the brush, by unscrewing one or both of the thumb nuts 26, 36 from the axle rod 24 and withdrawing the axle rod from the brackets. Thereupon the brush 16, together with the attached washers 21, 22 and the pulley 32, with the pull cord 35, may be withdrawn laterally from the brackets l2, 14. The restoration of the brush into the brackets is carried out in the reverse direction.

It will be seen that the brushing device 10 of FIGS. 14, inclusive, may if desired be mounted in vertical position, as when it is used as a bathing aid. It may also, for example, be mounted in either horizontal or vertical position on the wall of the bathroom in the shower stall or over the bathtub. In such location, it may be operated by the bather to wash either his front or his back.

In the second illustrative embodiment, shown in FIGS. 5-8, inclusive, the brushing device is generally designated 39. Device 39 is shown attached in vertical position to the wall 40 of a bathroom by means of similar upper and lower brackets 42 and 41, respectively. Each bracket has a base 44 and an arm 45 which projects in a direction normal to the base; the brackets may be attached to the wall by adhesive strips, not specifically shown, in a manner similar to the brackets of the first-described embodiment. An elongated vertical axle rod 46 is supported by upper and lower brackets, as shown, the ends of the axle rod extending through openings in the arms 45 of the brackets, and being retained therein by thumb knobs 47 and 49 screwed onto the upper and lower ends of the rod 46.

In this embodiment, the brackets 41 and 42 are spaced vertically apart through a distance which substantially exceeds the length of the brush 16. In the embodiment shown, assuming that the brush is free for axial travel, the brush may be reciprocated vertically as it is oscillated, depending upon the angle at which the spans 35' and 35" of the pull cord are disposed relative to the longitudinal axis of the brush. This is, of course, determined by the position of the operators hands as he grasps the ends of such spans of the pull cord. Altematively, the brush 16 may be fixedly positioned at a predetermined vertical location along the length of the axle rod 46 by stop means on rod 46 mounted above and below the brush.

A cord guide device 50 is connected to the upper end of brush 16 in such manner that device 50 rises and falls with the brush. Device 50 includes a horizontal bottom plate member 51, two parallel upstanding side plate members 52 secured to the side edges of member 51, and a horizontal top plate 54 which lies above the pulley 32, the plate 54 being fixedly secured to the upper edges of the side plate members 52. The free edge of the lower plate member 51 has a central semi-circular scallop cut thereinto the diameter of such scallop somewhat exceeding the diameter of the upper washer 22 which is affixed both to the brush core and to the pulley 32 in the same manner as in the embodiment of FIGS. l-4, inclusive. The upper plate member 54 of the guide device 50 has its outer free edge of semi-circular configuration and of a diameter which is at least equal to that of pulley 32. In order to prevent the guide device 50 from turning with the brush 16, there is provided a bumper means 55 which is attached to the rear edge of the plate member 51 of device 50 and confronts the wall 40, as shown in FIG. 6. As there shown, the rear edge 56 of bumper member 55 is spaced from the wall by a small distance.

As in the first-described embodiment, the brushin'g device 39 is provided with means which prevents the escape of the spans 35' and 35" of the pull cord from the groove in the pulley 32. Thus the side plate members 52 extend to substantially the vertical diametral plane through the core of the brush 16, so that the free edges 51 of the plate members 52 form with the opposite rims of the pulley 32 a substantially peripherally closed opening through which the runs 35' and 35" of the pull cord extend. The cord is thereby prevented from escape from the groove in the pulley.

The lower terminus of the range of reciprocation of the brush 16 is determined by an adjustable stop means mounted upon the axle rod 46. Such stop means takes the form of a cylindrical collar 57 which is split on one side thereof by a radial slot 60. The collar snugly receives the axle rod 46, and is retained thereon in vertically adjusted position by the tightening of a machine screw 61 which extends normal to slot 60 and which is freely received in a passage on one side of the slot 60 in the collar and is threaded into the portion of the collar on the other side of the slot. A second similar upper stop collar 62 is shown adjustably positioned upon the axle rod 46 above the upper plate member 51 of the cord guide 50. It will thus be seen that the extent of vertical travel of the brush 16, as well as its at rest position, may be adjusted by the adjustment of the vertical position of the stop collars 57 and 62. Conversely, the brush 16 may be fixed against axial travel, and in a desired vertical position, by an appropriate adjustment of the vertical positions of the stop collars 57 and 62.

The third embodiment of the brushing device, shown in FIGS. 9-11, inclusive, is designated generally by the reference character 66. In this embodiment, the device has a frame or base 67 to which an upper brush-supporting bracket 69 and a lower brush-supporting bracket 70 are secured. The vertically mounted brush disposed between the upper and lower brackets is designated 71.

The base or frame member 67 has a plate portion 72 and a central upstanding rib 74 extending throughout its length, as most clearly shown in FIGS. 9 and 10. Each of the brackets 69 and 70 has a central slot in its base, such slot receiving the rib 74.

The brush 71 has a tubular brush core 76 with an axial bore 77 therethrough. A plug-like member 78 has an upper, smaller-diametered part which snugly fits within the lower end of the bore 77 in the brush core, the lower end of member 78 being enlarged and having a shoulder which abuts the lower end of the brush core. A stub shaft 80 has its upper end snugly received within a central bore 82 through the member 78. A washer 83 received within an annular groove 86 in the stub shaft 80 prevents such stub shaft from upward travel into the bore 82 of member 78 past the position shown in FIG. 9. The lower end of the stub shaft 80 is journalled in a vertical bore 81 in the arm of the lower bracket 70.

A plug-like member 84 has a lower, smaller diametered portion which snugly fits within the upper end of the bore 77 in the brush core 76. Member 84 has an enlarged upper end which buts the upper end of the brush core. Rising above the larger-diametered portion of member 84 is a smaller diametered axially short sleeve portion 90 (FIG. 11) which is received within a socket in a pulley 89. The pulley 89, and the brush core 76 are integrally bonded together as by a curable adhesive. In order to augment the strength of the connection between the member 84 and the pulley 89, the short upstanding sleeve 90 on member 84 may be provided with two axially extending ribs or keys 87 which are received within correspondingly shaped grooves on the pulley socket.

A stub shaft 91, having a knob 92 affixed to the upper end thereof, extends downwardly through a bore 94 in the arm of the upper bracket 69, a bore 95 in the sleeve 90, and the central bore 107 in the member 84. When it is desired to remove the brush from the frame composed of the base 67 and the brackets 69 and 70, all that is necessary is to pull the stub shaft upwardly by grasping the knob 92 so as to pull the stub shaft out of the member 84 and the pulley 89. The upper end of the brush can then be tipped sufiiciently to clear the outer end of the arm on the bracket 69 so that the stub shaft 80 can be pulled upwardly out of the bore 81 in the arm of the lower bracket 70.

A brush-oscillating pull cord has a plurality of wraps 96 thereof disposed in the annular groove in the pulley 89, one span of the pull cord extending from the pulley being designated 97 and the other span thereof being designated 99. In order to increase the frictional engagement between the pull cord and the pulley, the surface of the pulley groove may be provided with a plurality of upstanding, generally V-shaped projections as shown at 100.

The brushing device 66 is provided with a cord guard102, which prevents the escape of the wraps 96 of the cord from the pulley 89. The cord guard 82 has an upper horizontal plate member, the rearward portion of which is provided with a central slot 105 which receives the rib 74 on the base 72 therewithin as shown in FIG. 10. The forward portion of the upper plate is rounded as shown at 106, the portion 106 having a diameter which preferably slightly exceeds the diameter of the rims of the pulley 89. Secured to the plate 104, 106, as by being adhesively bonded thereto is a part-cylindrical portion 109 which embraces and is disposed coaxial of the pulley 89. The cord guard 102 is completed by a lower member 110 which is secured to the lower edge of the part-cylindrical portion 109 and which has a semi-circular edge 111 which is of somewhat larger diameter than the core of the brush. The part-cylindrical portion 102 of the cord guard has opposite free edges 112 which are disposed in a substantially diametral plane through the axis of the brush core. It will be seen that engagement of the rib 74 in the slot 105 of the member 104 of the cord guard prevents the cord guard from rotation with the pulley 89. When the embodiment of FIGS. 9-11, inclusive, is modified in accordance with the second disclosed embodiment of the device, wherein the brush travels vertically in response to variation in the angle of pull imposed upon the pull cord, the cord guard 102 is free to travel vertically with the brush while being maintained from rotation with respect thereto by reason of the described engagement between the rib 74 and the slot 105.

In FIG. 12 there is shown a modification of the device of FIGS. 9-11, inclusive, which permits the brush to be oscillated by selectively pulling the spans 97, 99 of the pull cord either horizontally or vertically. When the spans of the cord are pulled vertically, as shown in FIG. 12, the brushing device is much more easily used to wash the front of the bather than when the spans 97, 99 of the cord are pulled horizontally, as in the washing of the bather's back.

Parts which are the same in FIG. 12 as in the embodiment of FIGS. 9-11, inclusive, are designated by the same reference characters.

In the embodiment of FIG. 12, there is shown a pivoted bracket 114 which is secured by a pivot pin 115 to the base 67 of the device, the portion of the bracket surrounding the pivot pin being rounded at 116 to allow the bracket to be pivoted from its horizontal, operative position, shown in FIG. 12, to an inner operative position in which it lies vertical. Two such brackets 114 are used, one on each side of the brushing device, each such bracket carrying at its outer free end a pulley 117 which is journalled on a stub shaft 119 at the outer free end of the bracket. The brackets 119 and the pulleys 117 are so positioned that the respective pulleys 117 engage the spans 97, 99 of the pull cord, as shown. When it is desired to restore the device to the condition in which the spans of the pull cord are pulled horizontally, it is merely necessary to disengage such spans of the cord from the respective pulleys 117 and to pivot the brackets 114 upwardly about their pivot pins 115. The engagement between the brackets and the pivot pin 115 is tight enough to retain the brackets stably in their elevated inoperative positions until they are needed.

Although a limited number of embodiments in the invention have been illustrated in the accompanying drawings described in the foregoing specification, it is to be especially understood that various changes, such as in the relative dimensions of the parts, materials used and the like, as well as the suggested manner of use of the apparatus of the invention, may be made therein without departing from the spirit and scope of the invention, as will now be apparent to those skilled in the art. Thus, the brackets which support the axle shaft for the brush may, if desired, be attached by screws and the like rather than adhesive means as shown. Also, the pull cord may have only one span extending from the pulley 32 rather than the two spans shown. Thus, the other span of the pull cord may be serially attached to one end of a coil tension spring, the other end of the spring being suitably fixedly anchored. The spring turns the brush and pulley in the direction opposite from that in which it is turned by the one span of the pull cord employed upon the release of such one span. Alternatively, the bracket at either the upper or lower end of the brush may also serve to support a coil torsion spring one end of which is secured to the brush and the other end of which is suitably fixedly anchored, the spring opposing the pull imposed upon the pulley by the one extending span of the pull cord.

The word brush as used herein is intended to cover all members which function with a brushing or a swabbing action. Among such members are rubber nip rolls (rolls with molded rubber bodies and bristles) and terrycloth covered rolls, for example.

What is claimed is: i

1. A brushing device, comprising a generally cylindrical brush, means mounting the brush for rotation about its axis, a pulley afiixed to the brush at one end thereof, and a pull cord wrapped about the pulley and having a span thereof disposed tangential of the pulley, reciprocation of said span of the pull cord oscillating the brush, a shaft which extends from one brush mounting means to the other, the brush having a tubular core through which the shaft extends, means on the shaft for securing it from appreciable endwise movement with respect to the brush mounting means, the brush mounting means having arms extending generally normal to the axis of the shaft, said arms having holes therein through which the ends of the shaft extend, and means forming enlarged heads on the ends of the shaft axially outwardly of the arms, at least one of said heads being removable from the shafi.

2. A brushing device as claimed in claim 1, wherein the arms are so spaced from each other that they prevent the brush from appreciable travel along its axis.

3. A brushing device, comprising a generally cylindrical brush, means mounting the brush for rotation about its axis, a pulley affixed to the brush at one end thereof, and a pull cord wrapped about the pulley and having a span thereof disposed tangential of the pulley, reciprocation. of said span of the pull cord oscillating the brush, the brush being mounted for axial movement.

4. A brushing device as claimed in claim 3, wherein the brush is mounted for axial movement upon variation of the angle of the said span of the pull cord with respect to the axis of the brush.

5. A brushing device as claimed in claim 4, comprising means for adjusting the range of movement of the brush along its axis.

6. A brushing device as claimed in claim 3, comprising means for preventing escape of the pull cord from the pulley.

7. A brushing device as claimed in claim 6, wherein the means for preventing escape of the pull cord from the pulley comprises a guard fitting about a portion of the pulley and closely approaching the periphery of the pulley at generally diametrically opposed zones.

8. A brushing device as claimed in claim 7, wherein the guard travels axially with the brush and pulley, and comprising means for holding the guard from rotation.

9. A brushing device comprising a generally cylindrical brush, means mounting the brush for rotation about its axis, a pulley affixed to the brush at one end thereof, a pull cord wrapped about the pulley and having a span thereof disposed tangential of the pulley, reciprocation of said span of the pull cord oscillating the brush, and means for selectively diverting said tangential span of the pull cord from a plane normal to the axis of the brush to a plane parallel to the axis of the brush.

10. A brushing device, comprising a generally cylindrical brush, means mounting the brush for rotation about its axis, a pulley afilxed to the brush at one end thereof, and a pull cord wrapped about the pulley and having a span thereof disposed tangential of the pulley, reciprocation of said span of the pull cord oscillating the brush, the brush mounting means having arms extending generally normal to the axis of the shaft, brush bearing means at each end of the brush, and means securing the last-named means for rotation in each of the said arms, said securing means being releasable from said arms, whereby the brush may be removed from the brushing device.

11. A brushing device as claimed in claim 10, comprising a frame having an elongated plate member extending parallel to the axis of the brush, said brushing mounting means being atfixed to the opposite ends of the plate member.

12. A brushing device as claimed in claim 11, comprising means for preventing escape of the pull cord from the pulley. said last-named means including a guard fitting about a portion of the pulley and closely approaching the periphery of the pulley at generally diametrically opposed zones.

13. A brushing device as claimed in claim 12, wherein the elongated plate member has an outwardly directed longitudinally extending rib, and the guard has a member extending toward the plate member, said last-named member being provided with a slot which receives the rib on the plate member therewithin.

t i i i I! 

1. A brushing device, comprising a generally cylindrical brush, means mounting the brush for rotation about its axis, a pulley affixed to the brush at one end thereof, and a pull cord wrapped about the pulley and having a span thereof disposed tangential of the pulley, reciprocation of said span of the pull cord oscillating the brush, a shaft which extends from one brush mounting means to the other, the brush having a tubular core through which the shaft extends, means on the shaft for securing it from appreciable endwise movement with respect to the brush mounting means, the brush mounting means having arms extending generally normal to the axis of the shaft, said arms having holes therein through which the ends of the shaft extend, and means forming enlarged heads on the ends of the shaft axially outwardly of the arms, at least one of said heads being removable from the shaft.
 2. A brushing device as claimed in claim 1, wherein the arms are so spaced from each other that they prevent the brush from appreciable travel along its axis.
 3. A brushing device, comprising a generally cylindrical brush, means mounting the brush for rotation about its axis, a pulley affixed to the brush at one end thereof, and a pull cord wrapped about the pulley and having a span thereof disposed tangential of the pulley, reciprocation of said span of the pull cord oscillating the brush, the brush being mounted for axial movement.
 4. A brushing device as claimed in claim 3, wherein the brush is mounted for axial movement upon variation of the angle of the said span of the pull cord with respect to the axis of the brush.
 5. A brushing device as claimed in claim 4, comprising means for adjusting the range of movement of the brush along its axis.
 6. A brushing device as claimed in claim 3, comprising means for preventing escape of the pull cord from the pulley.
 7. A brushing dEvice as claimed in claim 6, wherein the means for preventing escape of the pull cord from the pulley comprises a guard fitting about a portion of the pulley and closely approaching the periphery of the pulley at generally diametrically opposed zones.
 8. A brushing device as claimed in claim 7, wherein the guard travels axially with the brush and pulley, and comprising means for holding the guard from rotation.
 9. A brushing device comprising a generally cylindrical brush, means mounting the brush for rotation about its axis, a pulley affixed to the brush at one end thereof, a pull cord wrapped about the pulley and having a span thereof disposed tangential of the pulley, reciprocation of said span of the pull cord oscillating the brush, and means for selectively diverting said tangential span of the pull cord from a plane normal to the axis of the brush to a plane parallel to the axis of the brush.
 10. A brushing device, comprising a generally cylindrical brush, means mounting the brush for rotation about its axis, a pulley affixed to the brush at one end thereof, and a pull cord wrapped about the pulley and having a span thereof disposed tangential of the pulley, reciprocation of said span of the pull cord oscillating the brush, the brush mounting means having arms extending generally normal to the axis of the shaft, brush bearing means at each end of the brush, and means securing the last-named means for rotation in each of the said arms, said securing means being releasable from said arms, whereby the brush may be removed from the brushing device.
 11. A brushing device as claimed in claim 10, comprising a frame having an elongated plate member extending parallel to the axis of the brush, said brushing mounting means being affixed to the opposite ends of the plate member.
 12. A brushing device as claimed in claim 11, comprising means for preventing escape of the pull cord from the pulley, said last-named means including a guard fitting about a portion of the pulley and closely approaching the periphery of the pulley at generally diametrically opposed zones.
 13. A brushing device as claimed in claim 12, wherein the elongated plate member has an outwardly directed longitudinally extending rib, and the guard has a member extending toward the plate member, said last-named member being provided with a slot which receives the rib on the plate member therewithin. 